- 1General arrangement drawing no 9805 (YA1966.24/3/21/C/3/810)
1864, item - 2General arrangement drawing no 14287 (YA1966.24/3/21/C/5/2215)
1868, item - 3General arrangement drawing no 28811 (YA1966.24/3/21/C/14/3850)
1879, item - 4Wiring diagrams (GEC/2/2/2/33)
1926-1942, file - 5Diagram of connections (GEC/2/2/2/150)
1932-1951, file - 6Diesel electric locomotive general outlines for overseas railways (GEC/2/2/2/224)
1949-1953, file - 7Overseas railways general arrangements of diesel electric locomotives (GEC/2/2/2/261)
1947-1956, file - 8Ceylon Government Railways cranks, rods and door details (GEC/2/2/25/8)
1926-1951, file - 9Ceylon Government Railways and Iraqi State Railways smoke box tube plate, boiler and firebox parts (GEC/2/2/5/117)
1930-1951, file - 10GEC Witton electrical equipment and wiring diagrams including for British Railways, South African Railways and Harbours, Potugal Railways, and Ceylon Government Railways (GEC/2/2/9/5)
1950-1953, file - 11GEC Witton electrical equipment and wiring diagrams for british and overseas railways (GEC/2/2/9/8)
1940-1955, file - 12GEC Witton electrical equipment layouts including for Estoril Railway, Portugal, Ceylon Government Railways and Manchester-Sheffield-Wath electrification (GEC/2/2/9/28)
1948-1964, file - 13GEC Witton electrical equipment layouts including for Estoril Railway, Portugal, Ceylon Government Railways, Manchester-Sheffield-Wath electrification, South African Railways and Harbours and Victorian Railways (GEC/2/2/9/29)
1950-1951, file - 14Metropolitan-Vickers Electrical Co Ltd tender specifications (GEC/3/10/33)
1949-1950, file - 15General Electric Company manuals (GEC/3/6/53)
1957, file
